Rochester, Minnesota




Deep brain stimulation (DBS) is an efficacious neurosurgical treatment for Parkinson's disease and essential tremor. The therapeutic benefit of DBS has led to it being applied to a wide spectrum of disorders, including psychiatric conditions, epilepsy, dystonia, restless legs syndrome, Alzheimer's disease, headache, Tourette syndrome and intractable pain. Despite this application expansion, the mechanisms of DBS are not clearly understood.

In their laboratory, Su-Youne Chang, Ph.D., and her colleagues focus on understanding the mechanism of DBS action systematically in the brain utilizing cutting-edge techniques in the areas of electrophysiology, electrochemistry, neuroimaging, pharmacology and optogenetics.

Focus areas

Dr. Chang and her team are particularly interested in the neurobiological balance within the brain network. DBS may reset the unbalanced pathologic condition into another stage or return it to the original stage. Thus, they investigate the cellular and molecular mechanism of DBS.

Dr. Chang is also interested in developing DBS instrumentation based upon the neurobiological mechanism of DBS. Present DBS devices use electrical stimulation to modulate the brain network system. Her team wants to develop novel ways (e.g., optic and/or laser, novel stimulation pattern) to treat abnormal brain activity.

Significance to patient care

The ultimate goal of Dr. Chang and her colleagues is to improve the therapeutic efficacy of DBS based upon their neurobiological research, focusing on individualized treatment paradigms through convergent physiology, neurochemistry and neuroimaging.


Academic Rank

  1. Associate Professor of Neurosurgery
  2. Assistant Professor of Physiology
  3. Associate Professor of Biomedical Engineering


  1. Mini-Workshop for Optogenetics Stanford University
  2. Post Doctoral Research - Neurobiology Legacy Health Rearch System, Department of Dow Neurobiology
  3. Post Doctoral Research - Biomedical Sciences Iowa State University
  4. Ph.D. - Neurophysiology Ewha Womans University
  5. MS - Neurophysiology Ewha Womans University
  6. BA - Biology Ewha Womans University

Mayo Clinic Footer